LED display module, LED display device and manufacturing method of LED display module

Abstract

The present invention discloses an LED display module, an LED display device and a manufacturing method of the LED display module, and belongs to the display device field. The LED display module comprises a substrate, a plurality of inorganic LED chips, a control circuit, a photoluminescence layer and a transparent cover plate. The plurality of inorganic LED chips are in array arrangement on one side surface of the substrate and are connected with the control circuit separately, the control circuit is used to drive the plurality of inorganic LED chips to emit light, and the photoluminescence layer is arranged between the transparent cover plate and the plurality of inorganic LED chips and is excited to emit colored light under the irradiation of the light emitted by the inorganic LED chips. By arranging the inorganic LED chips on the photoluminescence layer, the photoluminescence layer is excited to emit colored light under the irradiation of the light emitted by the inorganic LED chips, so that the problem that when the organic materials are used to excite the colored light, the service lives of the organic materials are short, so that the service life of the display module is short, is avoided, and accordingly, the service life of the display module is prolonged.

Description

technical field [0001] The present invention relates to the field of display devices, in particular to an LED (light emitting diode, light emitting diode) display module, a display device and a method for manufacturing the display module. Background technique [0002] Currently common display devices include passive light-emitting display devices (such as liquid crystal display devices) and active light-emitting display devices (such as OLED (Organic Light Emitting Diode, organic light-emitting diode) display devices). The display device has the advantages of small thickness, low power consumption, fast response speed, etc., so the active light-emitting display device has greater market competitiveness. [0003] Among them, the OLED display device mainly adopts an AMOLED (ActiveMatrix / OrganicLightEmittingDiode, Active Matrix Organic Light Emitting Diode) display module. The AMOLED display module mainly includes a transparent substrate, a control circuit arranged on the tran...

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Problems solved by technology

[0004] However, because the service life of organic materials is not long, especially the service life of organic materials that produce blue light is very short (only about 1000 hours), therefore, the current AMOLED display module is limited by the service life of organic materials. It is short, which greatly limits the life of the display device. In addition, because AMOLED emits blue light with low light efficiency, in order to improve the brightness of blue light, the method of increasing current and power is usually used, which increases the power consumption of AMOLED.

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